Function extendBoundsWithDataPoints

src/core/createRenderCoordinator.ts:315–345

(bounds: Bounds | null, points: ReadonlyArray<DataPoint>)

};

const extendBoundsWithDataPoints = (bounds: Bounds | null, points: ReadonlyArray<DataPoint>): Bounds | null => {
  if (points.length === 0) return bounds;

  let b = bounds;
  if (!b) {
    // Try to seed from the appended points.
    const seeded = computeRawBoundsFromData(points);
    if (!seeded) return bounds;
    b = seeded;
  }

  let xMin = b.xMin;
  let xMax = b.xMax;
  let yMin = b.yMin;
  let yMax = b.yMax;

  for (let i = 0; i < points.length; i++) {
    const { x, y } = getPointXY(points[i]!);
    if (!Number.isFinite(x) || !Number.isFinite(y)) continue;
    if (x < xMin) xMin = x;
    if (x > xMax) xMax = x;
    if (y < yMin) yMin = y;
    if (y > yMax) yMax = y;
  }

  // Keep bounds usable for downstream scale derivation.
  if (xMin === xMax) xMax = xMin + 1;
  if (yMin === yMax) yMax = yMin + 1;

  return { xMin, xMax, yMin, yMax };
};

const extendBoundsWithOHLCDataPoints = (bounds: Bounds | null, points: ReadonlyArray<OHLCDataPoint>): Bounds | null => {
  if (points.length === 0) return bounds;